/Engine/Plugins/Experimental/SlateScreenReader/Source/SlateScreenReader/Public/SlateScreenReaderEngineSubsystem.h
Sets the rate text to speech will be speaking at for a screen reader user. If the provided user Id doesn't exist, nothing will happen.FScreenReaderReply::Handled()is returned if the speech rate is successfully set for the screen reader user. Otherwise,FScreenReaderReply::Unhandled()is returned.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="SlateScreenReader") [FScreenReaderReply](API\Plugins\ScreenReader\GenericPlatform\FScreenReaderReply) SetSpeechRate ( UPARAM(DisplayName="Screen Reader User Id") int32 InUserId, UPARAM(DisplayName="Rate") float InRate )